Home / 486,456.18-671,258.58-282,467.34

Finding the Fourth Proportional to 486,456.18, 671,258.58 and 282,467.34

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Solution

The fourth proportional to 486,456.18, 671,258.58 and 282,467.34 is: 389,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,456.18 : 671,258.58 = 282,467.34 : x
  2. Step 2: Convert to fraction form
    486,456.18/671,258.58 = 282,467.34/x
  3. Step 3: Cross multiply
    486,456.18x = 671,258.58 × 282,467.34
  4. Step 4: Simplify right side
    486,456.18x = 189,608,625,544.78
  5. Step 5: Solve for x
    x = 189,608,625,544.78/486,456.18
  6. Step 6: Final answer
    x = 389,775.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.